A vortex tube is a piece of metal that splits a stream of compressed air into two streams: one hot and one cold. Typical vortex tubes can cost upwards of a hundred dollars, so here's a way you can ...

We’re fascinated by things with no moving parts or active components that work simply by virtue of the shape they contain — think waveguides and resonators for microwave radiation. A si… ...

Though no one knows exactly how vortex tubes work, Exair Corp uses them in its 1,000 Btu/hr Cabinet Cooler. One of the most widely accepted explanation of the Vortex Tube Phenomenon is that ...